I find that recall is much slower and working memory is depleted (that makes it hard to do mental arithmetic and hard to make quick decisions because I can't keep all of the options in mind in order to compare them.) But my most persistent and exasperating problem is not being able to find things. I have instances when I look for something, can't find it, then someone points out that is directly in my field of vision! I loose one set of keys after another after another. Organizing my things is impossible if I'm tired. Also, although I can attend to things that are intrinsically interesting, such as reading, but if not, I just can't follow through. Someone gave me a fitbit but I just can't go through the steps of getting it set up. Also, I have a terrible memory for numbers!